Development of self-heating tack coat for bonding prefabricated rollable asphalt materials to existing pavement structure

Wang, Fang; Zhang, Hongbo; Liu, Kai; Liu, Hanqi; Zhang, Xuancheng

doi:10.1016/j.conbuildmat.2023.133937

Construction and Building Materials

2023

DOI: 10.1016/j.conbuildmat.2023.133937

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Development of self-heating tack coat for bonding prefabricated rollable asphalt materials to existing pavement structure

Fang Wang,

Hongbo Zhang,

Kai Liu

et al.

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2024

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Study on Multiple Effects of Self-Healing Properties and Thermal Characteristics of Asphalt Pavement

Zhang,

Sun,

Kong

et al. 2024

Buildings

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Asphalt pavements are prone to cracking in low-temperature environments, and microwave heating (MH) can heal the cracks effectively. This research mainly investigates the different MH effects on the self-healing properties of asphalt mixtures. With this objective, the three-point splitting test is conducted to generate the cracks. A microwave oven is employed to heat the samples, and a thermal camera measures the surface temperature. Results indicate that heating power and time show a positive linear correlation with healing efficiency, and the HI of the samples can reach over 80%. The HI of the samples decreases with the heating cycle, but the sample with reasonable power and time still has a HI higher than 70% after 5 cycles. The temperature peaks on thermal images indicate that uneven heating exists during heating, but the heating uniformity is within an acceptable range. The healing efficiency level (HEL) suggests that asphalt mixtures have very low inefficient healing behavior if the heating time is below 45 s, but HEL can reach 86.14% at 700 W after 60 s. Furthermore, although the HI of strength shows ideal results, the recovery of other crack parameters, including stiffness, fracture energy, flexible index, and crack resistance index, are not satisfactory.

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Study on Multiple Effects of Self-Healing Properties and Thermal Characteristics of Asphalt Pavement

Zhang,

Sun,

Kong

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

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Development of self-heating tack coat for bonding prefabricated rollable asphalt materials to existing pavement structure

Cited by 1 publication

References 30 publications

Study on Multiple Effects of Self-Healing Properties and Thermal Characteristics of Asphalt Pavement

Study on Multiple Effects of Self-Healing Properties and Thermal Characteristics of Asphalt Pavement

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